#pragma once
#include <iostream>
#include <string>
#include <queue>
#include <pthread.h>

const static int defaultcap=5;
template <typename T>
class Blockqueue
{
private:
    bool IsFull()
    {
        return _block_queue.size()==_max_cap;
    }
    bool IsEmpty()
    {
        return _block_queue.empty();
    }
public:
    Blockqueue(int cap = defaultcap):_max_cap(cap)
    {
        pthread_mutex_init(&_mutex,nullptr);
        pthread_cond_init(&_p_cond,nullptr);
        pthread_cond_init(&_c_cond,nullptr);
    }
    void Pop(T *out)  //两个消费者
    {
        pthread_mutex_lock(&_mutex);
        while(IsEmpty())
        {
            pthread_cond_wait(&_c_cond,&_mutex);
        }
        *out = _block_queue.front();
        _block_queue.pop();
        pthread_mutex_unlock(&_mutex);
        pthread_cond_signal(&_c_cond);
    }
    void Equeue(const T &in) //一个生产者
    {
        pthread_mutex_lock(&_mutex);
        while (IsFull())
        {
            pthread_cond_wait(&_p_cond,&_mutex);
        }
        _block_queue.push(in);
        pthread_mutex_unlock(&_mutex);
        pthread_cond_signal(&_p_cond);
        
    }
    ~Blockqueue()
    {
        pthread_mutex_destroy(&_mutex);
        pthread_cond_destroy(&_p_cond);
        pthread_cond_destroy(&_c_cond);
    }

private:
    std::queue<T> _block_queue;
    int _max_cap;
    pthread_mutex_t _mutex;
    pthread_cond_t _p_cond;
    pthread_cond_t _c_cond;

};
